Table 3.

The association of serologic type 2 biomarkers with skin nonreactivity to PPD

Biomarker% Specified Titer Level by PPD Status
OR (95% CI) for PPD Nonreactivity, Adjusted for Age, Gender, and Smoking History
Nonreactive*Reactive
Total IgE (kilounits/L)(n = 45)(n = 83)
    ≤71.024.437.41.0
    >71.0-314.035.632.51.6 (0.6-4.3)
    >314.040.030.13.4 (1.2-9.9)
sCD23 (units/mL)(n = 37)(n = 70)
    ≤45.829.734.31.0
    >45.8-58.029.735.71.0 (0.3-2.9)
    >58.040.530.01.5 (0.5-4.2)
sCD30 (units/mL)(n = 34)(n = 70)
  ≤  ≤35.832.434.31.0
    >35.8-47.929.435.70.8 (0.3-2.2)
    >47.938.230.01.1 (0.4-3.4)
  • * Column percents may not sum to 100.0 due to rounding.